Converter and Rectifier MCQ - Electrician (Set-1) with Answers

Converter and Rectifier MCQ - Electrician (Set-1) with Answers

31) In Bridge rectifier, how many times of ripple frequency at the output is greater than the input AC frequency ?

Answer is:

Two times

32) If the input A.C. frequency is 50 Hz, then the output ripple frequency of the bridge rectifier is

Answer is:

100 Hz

33) If one of the diodes in a full wave bridge rectifier opens, the output is

Answer is:

a half wave rectified voltage

34) Bridge rectifiers are preferred because

Answer is:

they need small transformer and also have less peak inverse voltage

35) If in a mercury arc rectifier, connections of anode and cathode are interchanged

Answer is:

the rectifier will not operate